<em>"Select the country in Africa where Spanish is spoken. Panama, Honduras, Argentina, Cuba, Guatemala, Costa Rica, Venezuela, El Salvador, Equatorial Guinea"</em>
Of the listed countries, Equatorial Guinea is the only located in Africa (Central Africa). The official languages of the country are Spanish, French and Portuguese.
Explanation: Regolith is formed from the constant bombardment of the lunar surface by space weathering processes, including most prominently meteoroid impacts